Finding the Fourth Proportional to 5,139,691.38, 7,708,837.23 and 1,352,857.14
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Solution
The fourth proportional to 5,139,691.38, 7,708,837.23 and 1,352,857.14 is: 2,029,101.50
Step by Step Solution
- Step 1: Write the proportion equation
5,139,691.38 : 7,708,837.23 = 1,352,857.14 : x - Step 2: Convert to fraction form
5,139,691.38/7,708,837.23 = 1,352,857.14/x - Step 3: Cross multiply
5,139,691.38x = 7,708,837.23 × 1,352,857.14 - Step 4: Simplify right side
5,139,691.38x = 10,428,955,487,703.32 - Step 5: Solve for x
x = 10,428,955,487,703.32/5,139,691.38 - Step 6: Final answer
x = 2,029,101.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.